20785042284 has 48 divisors (see below), whose sum is σ = 50194257120. Its totient is φ = 6686310400.

The previous prime is 20785042211. The next prime is 20785042319. The reversal of 20785042284 is 48224058702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 799084 + ... + 824684.

It is an arithmetic number, because the mean of its divisors is an integer number (1045713690).

Almost surely, 2^20785042284 is an apocalyptic number.

It is an amenable number.

20785042284 is an abundant number, since it is smaller than the sum of its proper divisors (29409214836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20785042284 is a wasteful number, since it uses less digits than its factorization.

20785042284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27970 (or 27968 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 42.

The spelling of 20785042284 in words is "twenty billion, seven hundred eighty-five million, forty-two thousand, two hundred eighty-four".